Across
- 2. The path an object follows around another object.
- 6. A large celestial body orbiting a star.
- 7. A rocky object orbiting the Sun.
- 8. An object that orbits a planet.
- 12. A tool to observe distant space objects.
- 13. The distance light travels in a year.
- 15. An icy body that releases gas and dust.
- 17. The Sun and all objects that orbit it.
- 19. A collection of stars, gas, and dust bound by gravity.
Down
- 1. A cloud of gas and dust where stars form.
- 3. Everything that exists, including galaxies and space.
- 4. A region in space with gravity so strong that nothing escapes.
- 5. A meteor that reaches Earth’s surface.
- 9. A scientist who studies space.
- 10. When one celestial body blocks another.
- 11. A space rock that burns up in Earth’s atmosphere.
- 14. The force that pulls objects toward each other.
- 16. A natural satellite orbiting a planet.
- 18. A massive ball of gas undergoing nuclear fusion.